Device for packing ferromagnetic pieces



May 27, 1969 J. N. LIKHACHEV TAL 3,445,987 DEVICE FOR PACKING FERROMAGNETIC PIECES y 1969 J- N. LIKHACHEV ET AL 3,445,987

DEVICE FOR PACKING FERROMAGNETIC PIECES Filed Jan. 30, 1967 sheet Z or a May 27, 1969 J. N. LIKHACHEV E A 3,445,987

DEVIE FO R PACKING FERROMAGNETIC PIECES Sheet 3 0:3

Filed Jan.

1 I l I I l United States Patent US. Cl. 53166 2 Claims ABSTRACT OF THE DISCLOSURE The present invention relates to devices for packing ferromagnetic pieces, mostly extended ones, particularly for packing cathode bases in a row with a preset pitch.

Known in the art is a device for packing ferromagnetic pieces, which has a vibrating chute arranged in a gap between the opposite polar tips of a C-shaped electromagnet. Pieces are oriented in the magnetic field of the electromagnet parallel to the working surface of the vibrating chute, move along said chute and then are packed (see the FRG Patent No. 1,072,184).

A disadvantage of said device is that it can be used exclusively for piling pieces, which fact may lead to deformation of the latter.

The object of the present invention is to provide a device free of said disadvantage.

Another object of the invention is to raise labor efliciency by packing pieces in a row with a preset pitch.

In the accomplishment of said and other objects in the device according to the invention magnetizing coils arranged around the outer surface of the polar tips are so fashioned as to induce a magnetic field perpendicular to the working surface of the vibrating chute on which detachable magazines are flush-mounted, said device having additional magnetizing coils placed so that a change in the direction of the magnetic field causes nonuniformity of the main magnetic field in the direction of the maga' zines and from them, thereby ensuring reciprocating motion of the pieces relative to said magazine.

It is preferable to make the polar tips H-shaped and arrange the additional coils in the tip grooves perpendicularly to the main magnetizing coils.

Further on the invention will be made apparent by a description of a preferred embodiment thereof, reference being had to the accompanying drawings, wherein:

FIG. 1 is a general front view of the device according to the invention;

FIG. 2 is a section on line II-II of FIG. 1;

FIGS. 30, b, and 0 show the position of the pieces on the vibrating chute within the magnetic field of the electromagnetic coils when the device is in operation and the additional magnetizing coils are cut in; and

FIGS. 4a and b show the direction of the magnetic power lines within the magnetic field of the device when the additional coils are cut in.

The device has a vibrating bin 1 (FIG. 1), a vibrating chute 2 mounted on springs 3 and 4, two vibrators 5 and 6 shifted in phase and placed on both sides of an arrna ture 7 rigidly secured to the vibrating chute 2. Mounted in the right end of said vibration chute is a feeding chute 8 connected with the vibrating bin and inclined at such an angle as to insure the vertical position of the cathode bases a when they get onto the vibrating chute 2. The front side of the vibrating chute 2 carries a magazine 9 having pockets 10 (FIG. 2) whose shape corresponds to the section of the packed cathode bases a. The magazine 9 is flush-mounted on the Working surface of the vibrating chute 2 so that the top edge of the pocket 10 be precisely as high as the upper surface of the vibrating chute 2. The vibrating chute is to be mounted between the opposite polar tips 11 and 12 of a C-shaped electromagnet 13, said polar tips being H-shaped. Wound around the tips 11 and 12, on their outer portions, are magnetizing coils 14 and 15 which induce a magnetic field perpendicular to the working surface of the vibrating chute 2. Wound in the grooves 16 and 17 are of the H-shaped polar tips 11 and 12 are additional coils 18 and 19 which are perpendicular to the magnetizing coils 14 and 15 and divide the tips 11 and 12 into two pairs of polar tips N 8 and N 8 The device of the invention operates as follows.

From the vibrating bin 1 a cathode base a: oriented with its connector 20 backwards goes onto the vibrating chute 2 from the inclined feeding chute 8 and is maintained in the vertical position with the aid of butts provided on the surface of the vibrating chute under the effect of the magnetic field induced by the magnetizing coils 14 and 15. By successively switching on the vibrators 5 and 6, the vertically positioned cathode bases a are uniformly distributed on the vibrating chute 2. When loading the vibrating chute the coils 18 and 19 are so connected that the magnetic field is concentrated between the poles N 8 of the tips 11 and 12 (FIGS. 30 and 4a), the cathode bases a being located within the zone of a maximum magnetic fiux, i.e., between the poles N 8 Then the direction of the current in the control coils 13 and 19 is changed for the opposite one, and the magnetic field is concentrated between the poles N 8 (FIGS. 3b and 4b) of the tips. With both vibrators in operation, the cathode bases a move along the vibrating chute 2 toward the magazine 9 falling into its pockets 10. Once said pockets 10 are filled, the magazines 9 change the direc tion of the current in the control coils 18 and 19 for the opposite one, the magnetic flux is concentrated be tween the poles N 8 of the tips 11 and 12 (FIG. 3c), and the cathode bases (2 return to their initial position. The magazines 9 filled with by the cathode bases a are removed and exchanged for the empty ones. After that the cycle is repeated.

The realization of the present invention will make it possible to avoid deformation of the pieces when packing the latter, and to pack them in a row with a preset pitch, which brings about a considerable increase of labor efficiency.

We claim:

1. A device for packing ferromagnetic pieces, comprising: an electromagnet of a C-shaped section; magnetizing coils arranged around the outer surface of the opposite polar tips of said electromagnet; a vibrating chute provided between said polar tips with the magnetizing coils so that the magnetic field in a gap between said tips is perpendicular to the working surface of said vibrating chute; detachable magazines with pockets for pieces, flush-mounted on said vibrating chute; additional magnetizing coils arranged so that a change in the direction of their magnetic field causes nonuniformity of the main 3 4 magnetic field in the direction of the magazines and from FOREIGN PATENTS them, said nonuniformity insuring reciprocating motion 1,072,184 12/1959 Germany of the pieces relative to said magazines.

2. A device as claimed in claim 1, wherein the polar THERON E CONDON, Primary Examiner tips are H-shaped, and said additional magnetizing coils 6 are placed in the grooves of said H-shaped coils perpen- NEIL ABRAMS, Assistant Examiner. dicuarly to the main magnetizing coils.

References Cited UNITED STATES PATENTS 10 29-203, 211;53236; 19841;2141

3,127,000 3/1964- Tack 19841 X US. Cl. X.R. 

